Published in final edited form as: Psychiatry Res. 2011 January 30; 191(1): 36–43.http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3004979/http://pss.sagepub.com/content/24/5/776.abstracthttps://faculty.washington.edu/wobbrock/pubs/gi-12.02.pdf.